(A) It is unlawful for any person to drive or move, or for the owner to cause or knowingly permit to be driven or moved on any highway any vehicle or combination of vehicles which is in an unsafe condition as to endanger any person or property, or which does not contain those parts or is not at all times equipped with the lamps and other equipment in proper condition and adjustment as required in this chapter, or which is equipped in any manner in violation of this chapter, or for any person to do any act forbidden or fail to perform any act required under this chapter.
(B) The provisions of this chapter with respect to equipment on vehicles shall not apply to implements of husbandry, road machinery, road rollers, or farm tractors, or to farm-wagon type trailers having a fertilizer spreader attachment permanently mounted thereon, having a gross weight of not to exceed 10,000 pounds and used only for the transportation of bulk fertilizer, or to farm-wagon type tank trailers of not more than 1200 gallons capacity, used during the liquid fertilizer season as field-storage "nurse tanks," supplying the fertilizer to a field applicator and highways only for bringing the fertilizer to a field applicator from a local source of supply to the farm or field or from one farm or field to another.
(ILCS Ch. 625, Act 5, § 12-101) Penalty, see § 70.999